The MacBook Air represents a significant departure from Apple's past notebook computer design. The Multi-Touch trackpad replicates a lot of the swiping and touch gestures found in Apple's other iOS devices. No CD-ROM/DVD-ROM drive in MacBook Air means that users rely on WiFi to transfer and sync data and install software. To make these forward leaps possible (remember how people freaked out when the first iMac came equipped without a floppy drive?), Apple has packed this MacBook Air with faster processing and more storage--so it's twice as fast as the previous models. Plus, there's more power for editing photos and movies, making FaceTime calls, playing games, and working with documents and presentations. Anyone considering the MacBook Air will get up and running faster will this book. Mac expert Jason Rich provides guidance to using the Mac OS for users who are new to MacBook Air from Windows-based PCs; experienced Mac users also will love the step-by-step instructions for using and mastering the updated MacBook Air and the newest version of Mac OS X, Mountain Lion.